It's my 1st installation of SMF. I added a forum to my website. I use a SMF 2.0.12 with Reseller theme. It looks very well but I have got two issues.

1st issue is:

My forum is under URL mypage.com/forum and I would like to add a Return button in a header which would provide on my main page. There is only Home button which provide to the home page of the forum. I'd like to add a return button as a 1st, before Home. Is there any automatic function like this under the admin panel (i haven't found a one) or should I modify some file? Which one? And how?

Thank you for a tips. Now I know which file I have to modify: /Sources/Subs.php

I need only a simple link - to the main page. I don't need to nor want to translate the button etc. So I think I can simply add a code of a new button before the 'home'. You see, the origin file looks like this (lines starts from 3921):